UST976003I4 - Wear resistant nickel-zinc ferrite - Google Patents

Wear resistant nickel-zinc ferrite Download PDF

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Publication number
UST976003I4
UST976003I4 US05/852,992 US85299277A UST976003I4 US T976003 I4 UST976003 I4 US T976003I4 US 85299277 A US85299277 A US 85299277A US T976003 I4 UST976003 I4 US T976003I4
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US
United States
Prior art keywords
sub
zinc ferrite
wear resistant
resistant nickel
mole percent
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US05/852,992
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William D. Kehr
Harold L. Turk
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Priority to US05/852,992 priority Critical patent/UST976003I4/en
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Publication of UST976003I4 publication Critical patent/UST976003I4/en
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
    • C04B35/265—Compositions containing one or more ferrites of the group comprising manganese or zinc and one or more ferrites of the group comprising nickel, copper or cobalt

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

a nickel-zinc ferrite material suitable for use in magnetic heads is disclosed. The material has a general empirical formula
(Ni.sub.1-y Zn.sub.y).sub.l-x Fe.sub.2+x O.sub.3.99
wherein x is less than 0 and greater than -0.040, y is from about 0.44 to about 0.58, and wherein the ratio of %NiO/%ZnO is from about 0.72 to about 1.27, and wherein the mole percent of NiO is from about 21.5 to about 28.5%, and the mole percent ZnO is from about 22.5 to about 29.5%, and the mole percent Fe2 O3 is from about 48 to about 50%. More specific composition ranges as well as a preferred composition are also disclosed.
US05/852,992 1977-11-18 1977-11-18 Wear resistant nickel-zinc ferrite Pending UST976003I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/852,992 UST976003I4 (en) 1977-11-18 1977-11-18 Wear resistant nickel-zinc ferrite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/852,992 UST976003I4 (en) 1977-11-18 1977-11-18 Wear resistant nickel-zinc ferrite

Publications (1)

Publication Number Publication Date
UST976003I4 true UST976003I4 (en) 1978-11-07

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ID=25314739

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/852,992 Pending UST976003I4 (en) 1977-11-18 1977-11-18 Wear resistant nickel-zinc ferrite

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US (1) UST976003I4 (en)

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